87843760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{64591}}^1$

素因数の和:64621

約数の個数: 40

約数和(自身を含む): 216254016

約数和(自身を除く): 128410256

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 64591, 129182, 258364, 322955, 516728, 645910, 1033456, 1098047, 1291820, 2196094, 2583640, 4392188, 5167280, 5490235, 8784376, 10980470, 17568752, 21960940, 43921880, 87843760]

約数ペア:

[(1, 87843760), (2, 43921880), (4, 21960940), (5, 17568752), (8, 10980470), (10, 8784376), (16, 5490235), (17, 5167280), (20, 4392188), (34, 2583640), (40, 2196094), (68, 1291820), (80, 1098047), (85, 1033456), (136, 645910), (170, 516728), (272, 322955), (340, 258364), (680, 129182), (1360, 64591)]